Mark Scheme (Results)
Summer 2024
Pearson Edexcel GCE
Chemistry (9CH0) Paper 03
General and Practical Principles in
Chemistry
,Edexcel and BTEC Qualifications
Edexcel and BTEC qualifications come from Pearson, the world’s leading learning
company. We provide a wide range of qualifications including academic,
vocational, occupational and specific programmes for employers. For further
information visit our qualifications websites at www.edexcel.com or
www.btec.co.uk for our BTEC qualifications.
Alternatively, you can get in touch with us using the details on our contact us page
at www.edexcel.com/contactus.
If you have any subject specific questions about this specification that require the
help of a subject specialist, you can speak directly to the subject team at Pearson.
Their contact details can be found on this link: www.edexcel.com/teachingservices.
You can also use our online Ask the Expert service at www.edexcel.com/ask. You
will need an Edexcel username and password to access this service.
Pearson: helping people progress, everywhere
Our aim is to help everyone progress in their lives through education. We believe
in every kind of learning, for all kinds of people, wherever they are in the world.
We’ve been involved in education for over 150 years, and by working across 70
countries, in 100 languages, we have built an international reputation for our
commitment to high standards and raising achievement through innovation in
education. Find out more about how we can help you and your students at:
www.pearson.com/uk
Summer 2024
Question Paper Log Number: P74455A
Publications Code: 9CH0_03_2406_MS
All the material in this publication is copyright
© Pearson Education Ltd 2024
,General Marking Guidance
• All candidates must receive the same treatment. Examiners must mark the
first candidate in exactly the same way as they mark the last.
• Mark schemes should be applied positively. Candidates must be rewarded
for what they have shown they can do rather than penalised for omissions.
• Examiners should mark according to the mark scheme not according to
their perception of where the grade boundaries may lie.
• There is no ceiling on achievement. All marks on the mark scheme should
be used appropriately.
• All the marks on the mark scheme are designed to be awarded. Examiners
should always award full marks if deserved, i.e. if the answer matches the
mark scheme. Examiners should also be prepared to award zero marks if
the candidate’s response is not worthy of credit according to the mark
scheme.
• Where some judgement is required, mark schemes will provide the
principles by which marks will be awarded and exemplification may be
limited.
• When examiners are in doubt regarding the application of the mark scheme
to a candidate’s response, the team leader must be consulted.
• Crossed out work should be marked UNLESS the candidate has replaced it
with an alternative response.
• Mark schemes will indicate within the table where, and which strands of
QWC, are being assessed. The strands are as follows:
i) ensure that text is legible and that spelling, punctuation and grammar are
accurate so that meaning is clear
ii) select and use a form and style of writing appropriate to purpose and to
complex subject matter
iii) organise information clearly and coherently, using specialist vocabulary
when appropriate
, Using the Mark Scheme
Examiners should look for qualities to reward rather than faults to penalise. This does NOT mean giving credit for incorrect or
inadequate answers, but it does mean allowing candidates to be rewarded for answers showing correct application of
principles and knowledge. Examiners should therefore read carefully and consider every response: even if it is not what is
expected it may be worthy of credit.
The mark scheme gives examiners:
• an idea of the types of response expected
• how individual marks are to be awarded
• the total mark for each question
• examples of responses that should NOT receive credit.
/ means that the responses are alternatives and either answer should receive full credit.
( ) means that a phrase/word is not essential for the award of the mark, but helps the examiner to get the sense of the
expected answer.
Phrases/words in bold indicate that the meaning of the phrase or the actual word is essential to the answer.
ecf/TE/cq (error carried forward) means that a wrong answer given in an earlier part of a question is used correctly in answer
to a later part of the same question.
Candidates must make their meaning clear to the examiner to gain the mark. Make sure that the answer makes sense. Do not
give credit for correct words/phrases which are put together in a meaningless manner. Answers must be in the correct context.
Quality of Written Communication
Questions which involve the writing of continuous prose will expect candidates to:
• write legibly, with accurate use of spelling, grammar and punctuation in order to make the meaning clear
• select and use a form and style of writing appropriate to purpose and to complex subject matter
• organise information clearly and coherently, using specialist vocabulary when appropriate.
Full marks will be awarded if the candidate has demonstrated the above abilities.
Questions where QWC is likely to be particularly important are indicated (QWC) in the mark scheme, but this does not preclude
others.
Summer 2024
Pearson Edexcel GCE
Chemistry (9CH0) Paper 03
General and Practical Principles in
Chemistry
,Edexcel and BTEC Qualifications
Edexcel and BTEC qualifications come from Pearson, the world’s leading learning
company. We provide a wide range of qualifications including academic,
vocational, occupational and specific programmes for employers. For further
information visit our qualifications websites at www.edexcel.com or
www.btec.co.uk for our BTEC qualifications.
Alternatively, you can get in touch with us using the details on our contact us page
at www.edexcel.com/contactus.
If you have any subject specific questions about this specification that require the
help of a subject specialist, you can speak directly to the subject team at Pearson.
Their contact details can be found on this link: www.edexcel.com/teachingservices.
You can also use our online Ask the Expert service at www.edexcel.com/ask. You
will need an Edexcel username and password to access this service.
Pearson: helping people progress, everywhere
Our aim is to help everyone progress in their lives through education. We believe
in every kind of learning, for all kinds of people, wherever they are in the world.
We’ve been involved in education for over 150 years, and by working across 70
countries, in 100 languages, we have built an international reputation for our
commitment to high standards and raising achievement through innovation in
education. Find out more about how we can help you and your students at:
www.pearson.com/uk
Summer 2024
Question Paper Log Number: P74455A
Publications Code: 9CH0_03_2406_MS
All the material in this publication is copyright
© Pearson Education Ltd 2024
,General Marking Guidance
• All candidates must receive the same treatment. Examiners must mark the
first candidate in exactly the same way as they mark the last.
• Mark schemes should be applied positively. Candidates must be rewarded
for what they have shown they can do rather than penalised for omissions.
• Examiners should mark according to the mark scheme not according to
their perception of where the grade boundaries may lie.
• There is no ceiling on achievement. All marks on the mark scheme should
be used appropriately.
• All the marks on the mark scheme are designed to be awarded. Examiners
should always award full marks if deserved, i.e. if the answer matches the
mark scheme. Examiners should also be prepared to award zero marks if
the candidate’s response is not worthy of credit according to the mark
scheme.
• Where some judgement is required, mark schemes will provide the
principles by which marks will be awarded and exemplification may be
limited.
• When examiners are in doubt regarding the application of the mark scheme
to a candidate’s response, the team leader must be consulted.
• Crossed out work should be marked UNLESS the candidate has replaced it
with an alternative response.
• Mark schemes will indicate within the table where, and which strands of
QWC, are being assessed. The strands are as follows:
i) ensure that text is legible and that spelling, punctuation and grammar are
accurate so that meaning is clear
ii) select and use a form and style of writing appropriate to purpose and to
complex subject matter
iii) organise information clearly and coherently, using specialist vocabulary
when appropriate
, Using the Mark Scheme
Examiners should look for qualities to reward rather than faults to penalise. This does NOT mean giving credit for incorrect or
inadequate answers, but it does mean allowing candidates to be rewarded for answers showing correct application of
principles and knowledge. Examiners should therefore read carefully and consider every response: even if it is not what is
expected it may be worthy of credit.
The mark scheme gives examiners:
• an idea of the types of response expected
• how individual marks are to be awarded
• the total mark for each question
• examples of responses that should NOT receive credit.
/ means that the responses are alternatives and either answer should receive full credit.
( ) means that a phrase/word is not essential for the award of the mark, but helps the examiner to get the sense of the
expected answer.
Phrases/words in bold indicate that the meaning of the phrase or the actual word is essential to the answer.
ecf/TE/cq (error carried forward) means that a wrong answer given in an earlier part of a question is used correctly in answer
to a later part of the same question.
Candidates must make their meaning clear to the examiner to gain the mark. Make sure that the answer makes sense. Do not
give credit for correct words/phrases which are put together in a meaningless manner. Answers must be in the correct context.
Quality of Written Communication
Questions which involve the writing of continuous prose will expect candidates to:
• write legibly, with accurate use of spelling, grammar and punctuation in order to make the meaning clear
• select and use a form and style of writing appropriate to purpose and to complex subject matter
• organise information clearly and coherently, using specialist vocabulary when appropriate.
Full marks will be awarded if the candidate has demonstrated the above abilities.
Questions where QWC is likely to be particularly important are indicated (QWC) in the mark scheme, but this does not preclude
others.
